Home / 20,494.90-28,282.68-11,543.29

Finding the Fourth Proportional to 20,494.90, 28,282.68 and 11,543.29

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Solution

The fourth proportional to 20,494.90, 28,282.68 and 11,543.29 is: 15,929.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,494.90 : 28,282.68 = 11,543.29 : x
  2. Step 2: Convert to fraction form
    20,494.90/28,282.68 = 11,543.29/x
  3. Step 3: Cross multiply
    20,494.90x = 28,282.68 × 11,543.29
  4. Step 4: Simplify right side
    20,494.90x = 326,475,177.22
  5. Step 5: Solve for x
    x = 326,475,177.22/20,494.90
  6. Step 6: Final answer
    x = 15,929.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.